Why Is Iran Holding U.S. Scholars?Iran had detained a number of Iranian-American scholars, but there isn't much indication from the government why it has pursued this course. It's also unclear what conditions they face in captivity.

Iran had detained a number of Iranian-American scholars, but there isn't much indication from the government why it has pursued this course. It's also unclear what conditions they face in captivity. From Tehran, Financial Times reporter Gareth Smyth talks with Renee Montagne.